Yearender: World's top sports news in 2017

(Photo source: Xinhua)

- 36-year-old Roger Federer and 31-year-old Rafael Nadal combined to sweep the men's singles titles at the four Grand Slam tournaments in 2017.

Federer won the Australian Open and Wimbledon Championships to lift his career total to 19 Grand Slam titles. Nadal won the French Open for a record 10th time and the US Open.